12.—(1) Where—
(a)a group of capacity measures [F1of] the same nominal capacity and the same manufacture is submitted for testing; and
(b)the conditions specified in paragraph (2) below are satisfied with respect to the group,
the inspector may, at the request of the person submitting them (“the submitter”), confine the testing to a number of measures determined and selected as specified in paragraph (3) below.
(2) The conditions referred to in paragraph (1)(b) above are that—
(a)the group shall be clearly identifiable and shall comprise more than 500 but not more than 150,000 measures;
(b)the measures in the group shall all have been produced by the same production process; and
(c)the group shall be accompanied by records of the production process and of any subsequent action taken by the manufacturer which are adequate to show that the measures in the group are likely to fall within the prescribed limits of error.
(3) The number of measures referred to in paragraph (1) above shall be determined, and the measures shall be selected, by sampling plans and procedures using samples which the inspector considers to be representative; and the sample of measures shall be tested, in accordance either with paragraph (4) below or, if the submitter so requests, with paragraph (5) below.
(4) Under this paragraph the sample of measures—
(a)shall be selected F2... in accordance with BS 6001: Part 1: 1991; and
(b)shall be tested for all the appropriate requirements of these Regulations, including limits of error on capacity conducted either volumetrically or gravimetrically as described in regulation 9(c) above and in accordance with BS 6002: 1993.
(5) Under this paragraph the sample of measures shall be selected in accordance with BS 6001: Part 1: 1991 and—
(a)the sample shall be tested for all the appropriate requirements of these Regulations except limits of error on capacity; and
(b)a sub-sample of the measures selected under paragraph (3) above which the inspector considers to be representative, shall be tested gravimetrically as described in regulation 9(c) above and in accordance with BS 6002: 1993.
(6) Under each of paragraphs (4) and (5) above, the test shall provide an acceptable quality level equal to 1 per cent.
(7) If the sample selected as specified in paragraph (3) above satisfies the test specified in paragraph (4) above or both the tests specified in paragraph (5) above, the other measures in the group shall be treated as having satisfied the test or tests as the case may be.
Textual Amendments
F1Word in reg. 12(1)(a) inserted (3.4.2001) by The Measuring Equipment (Capacity Measures) (Amendment) Regulations 2001 (S.I. 2001/599), regs. 1, 4(c)(i)
F2Words in reg. 12(4)(a) omitted (3.4.2001) by virtue of The Measuring Equipment (Capacity Measures) (Amendment) Regulations 2001 (S.I. 2001/599), regs. 1, 4(c)(ii)
Commencement Information